How can Player get back to the coordinates of C scene?

Hello, I am studying UNITY while looking at the textbook.
When Player move from A scenes to B scenes or from A Scenes to C scenes work well.
However When the player moves from C scene to A scene,
It returns to B scene coordinate.
How can It get back to the coordinates of C scene?
I'm looking for help. Thank you.

++) Please recommend lectures and books that can help solve the problem. Thank you.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. public class StartPoint : MonoBehaviour
5. {
6.     public string startPoint;
7.     private PlayerManager thePlayer;
8.     private CameraManager theCamera;
9.     // Start is called before the first frame update
10.     void Start()
11.     {
12.         theCamera = FindObjectOfType<CameraManager>();
13.         thePlayer = FindObjectOfType<PlayerManager>();
14.         if (startPoint == thePlayer.currentMapName)
15.         {
16.             theCamera.transform.position = new Vector3(this.transform.position.x, this.transform.position.y, theCamera.transform.position.z);
17.             thePlayer.transform.position = this.transform.position;
18.             this.gameObject.SetActive(false);
19.         }
20.     }
21.     // Update is called once per frame
22.     void Update()
23.     {
24.     }
25. }

 

If you post a code snippet, ALWAYS USE CODE TAGS:

How to use code tags: https://forum.unity.com/threads/using-code-tags-properly.143875/

You may edit your post above.

Generally scenes are all different, unrelated to each other unless you do something.

You can put invisible GameObjects in a scene to indicate places such as "Spawn player here" or "Spawn enemies here"

 

I edited the post thank you.